Specification #JI 0304
The insulation medium is purpose - manufactured semi-rigid premium quality
fiberglass wrap with Kraft lining and foil vapor barrier. The fiberglass filaments
are laminated parallel to the facings for enhanced flexibility and maximum
2.5 lbs./cu ft
4.17 per inch
2 inches (R-8 value)
3 inches (R-12 value)
4 inches (R-16 value)
After installation, the insulation is clad with a galvanized
steel jacket secured with #8 sheet metal screws and painted with 2
to 3 mils of high gloss alkyd enamel. Color is light gray.
24 gage (.0239"/.607 mm)
2 to 3 mils alkyd
enamel over galvanizing
IMPORTANT: Minor shipping damage is more noticeable on jacketed tanks due to the uniform finish and the nature of the jacket. Extra lugs are installed on jacketed vessels for securing the tanks during shipment and they are normally palletized and shipped on a flat bed. Even so, minor cosmetic damage can occur and must be considered normal.